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Reference number
ISO 720:1981
© ISO 2024
ISO 720:1981
Glass — Hydrolytic resistance of glass grains at 121 degrees C — Method of test and classification
Edition 1
1981-10
Withdrawn
ISO 720:1981
4949
ICS
81
81.040
81.040.01
ISO 720:1981
Glass — Hydrolytic resistance of glass grains at 121 degrees C — Method of test and classification
Withdrawn
(Edition 1, 1981)
New version available:
ISO 720:2020
General information
Status
:
Withdrawn
Publication date
:
1981-10
Stage
: Withdrawal of International Standard [
95.99
]
Edition
: 1
Number of pages
: 3
Technical Committee :
ISO/TC 76
ICS
:
81.040.01
RSS
updates
Life cycle
Now
Withdrawn
ISO 720:1981
Stage:
95.99
00
Preliminary
10
Proposal
20
Preparatory
30
Committee
30.00
1975-10-01
Committee draft (CD) registered
40
Enquiry
40.00
1979-03-01
DIS registered
40.20
1979-11-01
DIS ballot initiated: 12 weeks
40.60
1980-06-01
Close of voting
50
Approval
50.00
1981-07-01
Final text received or FDIS registered for formal approval
50.20
1981-09-01
Proof sent to secretariat or FDIS ballot initiated: 8 weeks
50.60
1981-09-01
Close of voting. Proof returned by secretariat
60
Publication
60.60
1981-10-01
International Standard published
90
Review
95
Withdrawal
95.99
1985-10-01
Withdrawal of International Standard
Revised by
Withdrawn
ISO 720:1985
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